Microsoft, Apple Sued Over Touch-screens in iPod, Zune

Microsoft and Apple, along with a handful of other tech companies, find themselves strange bedfellows after being sued by a small company over a touch-screen patent. The lawsuit, originally filed on July 15 in Texas Eastern District Court, alleges that Apple's iPod, Microsoft's Zune and other media-playing devices all use touch-screen technology invented by Tsera.

Microsoft
and Apple
are finding themselves the target of a small technology company named Tsera,
which is alleging that both the Zune and iPod, along with several other
devices, violate its touch-screen patent.
Nor are they the only companies in the cross-hairs; Tsera is seeking damages
from 23 tech entities in total, including Bang & Olufsen, LG Electronics,
Philips Electronics North America and Mach Speed Technologies. None of the
defendants has issued a statement on the matter.

The lawsuit, originally filed on July 15 in Texas Eastern District Court,
alleges that Microsoft's Zune, along with Apple's iPod and a host of other
mass-market media players, violate a touch-screen patent filed by Tsera's
representatives in October 2003.

LG's Chocolate cell phone, which can store digital music files, and Philips'
GoFear MP3 player are other devices alleged to violate the patent.
Titled "Methods and apparatus for controlling a portable electronic
device using a touchpad," the patent (number 6639584) details a touchpad
mounted in the housing of a media-playing device, which then allows users to input
commands by "tracing patterns with his finger." The user's finger
motions are matched by a microcontroller within the device to a number of
preset patterns, which in turn translate into a function or command.
The Texas court system has
been the setting for a number of patent lawsuits launched by small companies
against corporations such as Apple. In 2007, a Canadian company named Wi-LAN
launched a patent-infringement suit against Apple, Dell, Sony and a host of
others. In 2006, Anascape sued Microsoft and Nintendo for allegedly violating
its patents over game controllers, and won the first judgment to the tune of
$21 million.

Nicholas Kolakowski is a staff editor at eWEEK, covering Microsoft and other companies in the enterprise space, as well as evolving technology such as tablet PCs. His work has appeared in The Washington Post, Playboy, WebMD, AARP the Magazine, AutoWeek, Washington City Paper, Trader Monthly, and Private Air. He lives in Brooklyn, New York.